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An Analysis of Free-hand Targeting in Laparoscopic Liver Microwave Ablation. Surg Laparosc Endosc Percutan Tech 2020; 31:215-219. [PMID: 33048898 DOI: 10.1097/sle.0000000000000868] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 09/04/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Recently, new technologies have been developed for antenna placement in laparoscopic liver tumor ablation (LLTA). At this point, it is important to analyze the efficacy of free-hand targeting to identify deficiencies and opportunities for improvement. METHODS This was an institutional review board-approved retrospective study. Video recordings of 30 consecutive patients with 77 lesions who underwent LLTA were reviewed. Tumor-specific anatomic and targeting-related parameters were analyzed using χ2, t test, and regression analyses. RESULTS Neuroendocrine metastasis was the dominant tumor type, with median tumor size 1.4 cm (range, 0.5 to 5.2). In total, 41 (53%) tumors were superficial and 36 (47%) deep. In 68 lesions (88%), an optimal targeting was achieved with first attempt, without a need for repositioning; whereas 9 lesions (12%) required repositioning of antenna. For 37% (15/41) of superficial and 56% (20/36) of deep lesions, a straight avascular needle trajectory was not present, requiring steering of the antenna around vascular and biliary structures. All procedures were completed laparoscopically without bleeding or biliary complications. Local treatment recurrence rate in follow-up was 10% (n=8). CONCLUSIONS This study shows that in experienced hands, LLTA through free-hand technique is safe and efficacious, providing an accurate targeting with the first pass in 90% of tumors. Although newer technology is being developed to guide less-experienced surgeons in needle targeting, it should be kept in mind that a straight trajectory is not available for 1/3 of superficial and half of deep lesions. Hence, ablation surgeons need to develop free-hand skills to avoid possible hemorrhagic and biliary complications in LLTA.
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Erten O, Li P, Gokceimam M, Akbulut S, Berber E. Impact of ablation algorithm versus tumor-dependent parameters on local control after microwave ablation of malignant liver tumors. J Surg Oncol 2020; 123:179-186. [PMID: 32976655 DOI: 10.1002/jso.26237] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 09/07/2020] [Accepted: 09/14/2020] [Indexed: 01/25/2023]
Abstract
BACKGROUND The aim of this study is to assess the effect of tumor versus ablation-algorithm dependent parameters on local recurrence (LR) after microwave ablation (MWA) of liver malignancies. METHODS This was an institutional review board-approved study of patients who underwent laparoscopic or open MWA of malignant liver tumors. The impact of ablation algorithm (stepwise or direct heating, single or overlapping ablations, and ablation margin) and tumor-dependent (type, size, location, and blood vessel proximity) parameters on LR was analyzed using Kaplan-Meier and Cox proportional hazards. RESULTS A total of 179 patients with 602 liver tumors underwent 200 MWA procedures. Colorectal liver metastasis (CLM) was the most frequent tumor type followed by neuroendocrine liver metastasis (NELM), other metastatic tumors, and hepatocellular cancer (HCC). For patients followed at least a year with imaging, LR rate was 8.8% per lesion and 13.1%,1.3%, 11.7%, and 12.6%, for CLM, NELM, HCC, and other tumor types, respectively. On multivariate analysis, independent predictors of LR included tumor type, tumor size, and ablation margin. CONCLUSION LR after MWA for malignant liver tumors is predicted by both tumor and surgeon-dependent factors. Variations in the ablation algorithm did not affect LR, leaving the ablation margin as the only parameter that could be modified to optimize local tumor control.
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Affiliation(s)
- Ozgun Erten
- Department of Endocrine Surgery, Cleveland Clinic, Ohio, USA
| | - Pengpeng Li
- Department of Endocrine Surgery, Cleveland Clinic, Ohio, USA
| | | | - Serkan Akbulut
- Department of Endocrine Surgery, Cleveland Clinic, Ohio, USA
| | - Eren Berber
- Department of Endocrine Surgery, Cleveland Clinic, Ohio, USA.,Department of General Surgery, Cleveland Clinic, Ohio, USA
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Cacciola A, Parisi S, Tamburella C, Lillo S, Ferini G, Molino L, Iatì G, Pontoriero A, Bottari A, Mazziotti S, Cicero G, Minutoli F, Blandino A, Pergolizzi S. Stereotactic body radiation therapy and radiofrequency ablation for the treatment of liver metastases: How and when? Rep Pract Oncol Radiother 2020; 25:299-306. [PMID: 32194349 DOI: 10.1016/j.rpor.2020.02.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 02/19/2020] [Indexed: 02/07/2023] Open
Abstract
Limited liver metastases represent a clinical challenge. Surgical approach is the most frequently reported treatment option, however, some patients are not eligible for surgical interventions. Relatively recent technologic advances have permitted the safe use of ablative techniques employed in the cure of hepatic metastases. Among these, radiofrequency ablation (RFA) and stereotactic body radiotherapy (SBRT) have emerged as valid treatments in a significant proportion of patients with intrahepatic oligometastatic disease. This review offers an up-to-date of current available literature on this issue focusing on the use and outcomes of RFA and SBRT, according to the PICO (Population, Intervention, Comparison and Outcomes) criteria.
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Affiliation(s)
- Alberto Cacciola
- Radiation Oncology Unit - Department of Biomedical, Dental Science and Morphological and Functional Images, University of Messina, Messina, Italy
| | - Silvana Parisi
- Radiation Oncology Unit - Department of Biomedical, Dental Science and Morphological and Functional Images, University of Messina, Messina, Italy
| | - Consuelo Tamburella
- Radiation Oncology Unit - Department of Biomedical, Dental Science and Morphological and Functional Images, University of Messina, Messina, Italy
| | - Sara Lillo
- Radiation Oncology Unit - Department of Biomedical, Dental Science and Morphological and Functional Images, University of Messina, Messina, Italy
| | - Gianluca Ferini
- Radiation Oncology Unit - Department of Biomedical, Dental Science and Morphological and Functional Images, University of Messina, Messina, Italy
| | - Laura Molino
- Radiation Oncology Unit - Department of Biomedical, Dental Science and Morphological and Functional Images, University of Messina, Messina, Italy
| | - Giuseppe Iatì
- Radiation Oncology Unit - Department of Biomedical, Dental Science and Morphological and Functional Images, University of Messina, Messina, Italy
| | - Antonio Pontoriero
- Radiation Oncology Unit - Department of Biomedical, Dental Science and Morphological and Functional Images, University of Messina, Messina, Italy
| | - Antonio Bottari
- Radiology Unit - Department of Biomedical, Dental Science and Morphological and Functional Images, University of Messina, Messina, Italy
| | - Silvio Mazziotti
- Radiology Unit - Department of Biomedical, Dental Science and Morphological and Functional Images, University of Messina, Messina, Italy
| | - Giuseppe Cicero
- Radiology Unit - Department of Biomedical, Dental Science and Morphological and Functional Images, University of Messina, Messina, Italy
| | - Fabio Minutoli
- Nuclear Medicine Unit - Department of Biomedical, Dental Science and Morphological and Functional Images, University of Messina, Messina, Italy
| | - Alfredo Blandino
- Radiology Unit - Department of Biomedical, Dental Science and Morphological and Functional Images, University of Messina, Messina, Italy
| | - Stefano Pergolizzi
- Radiation Oncology Unit - Department of Biomedical, Dental Science and Morphological and Functional Images, University of Messina, Messina, Italy
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Radiofrequency ablation for colorectal cancer liver metastases initially greater than 25 mm but downsized by neo-adjuvant chemotherapy is associated with increased rate of local tumor progression. HPB (Oxford) 2018; 20:76-82. [PMID: 29029986 DOI: 10.1016/j.hpb.2017.08.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 08/18/2017] [Accepted: 08/26/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND Radiofrequency ablation (RFA) is a valid treatment for liver metastases from colorectal cancer (CRLM) smaller than 25 mm and unsuitable for surgical resection. Tumor size is predictive for local tumor progression (LTP). The aim of this study was to evaluate whether RFA is indicated for lesions >25 mm at presentation but <25 mm after chemotherapy. METHOD Patients who underwent RFA for CRLM after chemotherapy (January 2004-December 2012) were reviewed. Metastases were classified according to their size. Group 1: ≤25 mm before and after chemotherapy. Group 2A: >25 mm before but ≤25 mm after chemotherapy. Group 2B: >25 mm before and after chemotherapy. RESULTS 133 CRLM were ablated in 83 patients (median follow-up 56 months). At 1-year, the LTP rate was higher in group 2A than in group 1 (32% vs. 16%, p ≤ 0.001). The highest rate of 1-year LTP was 64% in group 2B. Time to LTP (TLTP) was shorter in group 2A than in group 1 (HR: 2.89; 95% CI [1.04-8.01]; p = 0.004). Following multivariate analysis, the group type was the only predictive factor for TLTP (p < 0.001). CONCLUSIONS RFA is not the optimal treatment for CRLM > 25 mm at presentation.
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Takahashi H, Akyuz M, Aksoy E, Karabulut K, Berber E. Local recurrence after laparoscopic radiofrequency ablation of malignant liver tumors: Results of a contemporary series. J Surg Oncol 2017; 115:830-834. [PMID: 28320045 DOI: 10.1002/jso.24599] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Revised: 01/29/2017] [Accepted: 02/14/2017] [Indexed: 12/13/2022]
Abstract
INTRODUCTION The aims of this study were to determine the incidence of Local recurrence (LR) in patients at long-term follow-up after laparoscopic RFA (LRFA) and also to determine the risk factors for LR from a contemporary series. METHODS Patients undergoing LRFA between 2005 and 2014 by a single surgeon were reviewed. Demographic and perioperative data were analyzed from a prospective database. RESULTS LRFA was performed on 316 patients with 901 lesions. Median follow-up was 25 months, with 76% of whom completed at least one year of follow-up. The LR rate was 18.4%. The LR in patients followed for less than 12 months was 13.8%, 20.3% for 12 months, and 19.7% for 18 months (P = 0.02). One-fourth of the LRs developed after the 1st year. Morbidity was 8.9% and mortality 0.3%. Tumor type, size, ablation margin, and surgeon experience affected LR, with tumor type, size, and ablation margin being independent. CONCLUSIONS This study shows that 14% of malignant liver tumors will develop LR within a year after LRFA. Additional 4% of the lesions will demonstrate recurrence within 1 cm of the ablation zone, mostly as part of a multifocal recurrence. Ablation margin is the only parameter that the surgeon can manipulate to decrease LR.
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Affiliation(s)
- Hideo Takahashi
- Department of General Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Muhammet Akyuz
- Department of Endocrine Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Erol Aksoy
- Department of Endocrine Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Koray Karabulut
- Department of Endocrine Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Eren Berber
- Department of General Surgery, Cleveland Clinic, Cleveland, Ohio.,Department of Endocrine Surgery, Cleveland Clinic, Cleveland, Ohio
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18F-FDG PET as novel imaging biomarker for disease progression after ablation therapy in colorectal liver metastases. Eur J Nucl Med Mol Imaging 2017; 44:1165-1175. [PMID: 28180965 PMCID: PMC5434127 DOI: 10.1007/s00259-017-3637-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 01/22/2017] [Indexed: 12/11/2022]
Abstract
Purpose Recurrent disease following thermal ablation therapy is a frequently reported problem. Preoperative identification of patients with high risk of recurrent disease might enable individualized treatment based on patients’ risk profile. The aim of the present work was to investigate the role of metabolic parameters derived from the pre-ablation 18F-FDG PET/CT as imaging biomarkers for recurrent disease in patients with colorectal liver metastases (CLM). Methods Included in this retrospective study were all consecutive patients with CLM treated with percutaneous or open thermal ablation therapy who had a pre-treatment baseline 18F-FDG PET/CT available. Multivariable cox regression for survival analysis was performed using different models for the metabolic parameters (SULpeak, SULmean, SULmax, partial volume corrected SULmean (cSULmean), and total lesion glycolysis (TLG)) corrected for tumour and procedure characteristics. The study endpoints were defined as local tumour progression free survival (LTP-FS), new intrahepatic recurrence free survival (NHR-FS) and extrahepatic recurrence free survival (EHR-FS). Clinical and imaging follow-up data was used as the reference standard. Results Fifty-four patients with 90 lesions were selected. Univariable cox regression analysis resulted in eight models. Multivariable analysis revealed that after adjusting for lesion size and the approach of the procedure, none of the metabolic parameters were associated with LTP-FS or EHR-FS. Percutaneous approach was significantly associated with a shorter LTP-FS. It was demonstrated that lower values of SULpeak, SULmax, SULmean , and cSULmean are associated with a significant better NHR-FS, independent of the lesion size and number and prior chemotherapy. Conclusion We found no association between the metabolic parameters on pre-ablation 18F-FDG PET/CT and the LTP-FS. However, low values of the metabolic parameters were significantly associated with improved NHR-FS. The clinical implication of these findings might be the identification of high-risk patients who might benefit most from adjuvant or combined treatment strategies. Electronic supplementary material The online version of this article (doi:10.1007/s00259-017-3637-0) contains supplementary material, which is available to authorized users.
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Kim H, Gill B, Beriwal S, Huq MS, Roberts MS, Smith KJ. Cost-Effectiveness Analysis of Stereotactic Body Radiation Therapy Compared With Radiofrequency Ablation for Inoperable Colorectal Liver Metastases. Int J Radiat Oncol Biol Phys 2016; 95:1175-83. [DOI: 10.1016/j.ijrobp.2016.02.045] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 02/07/2016] [Accepted: 02/15/2016] [Indexed: 12/15/2022]
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Siriwardena AK, Mason JM, Mullamitha S, Hancock HC, Jegatheeswaran S. Management of colorectal cancer presenting with synchronous liver metastases. Nat Rev Clin Oncol 2014; 11:446-59. [DOI: 10.1038/nrclinonc.2014.90] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Abstract
Thermal ablation of hepatic tumors has been an evolving field over the last two decades. It is used in the treatment of both primary and metastatic neoplasms, and with evolutions in the technology, there has been an increasing interest in treating lesions where hepatic resection is not an option. Laparoscopic or minimally invasive surgical procedures have also advanced during this same time period, and the interface of these tools has been associated with the genesis of a new approach for treating hepatic lesions which are located in difficult to reach locations or found immediately adjacent to other intra-abdominal organs. This review summarizes the published literature focusing on the treatment of primary and metastatic neoplasms located in the liver, including a review of outcomes.
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Affiliation(s)
- Philip T. Pepple
- Department of Surgery, University of North Carolina at Chapel Hill
| | - David A. Gerber
- Department of Surgery, University of North Carolina at Chapel Hill
- Lineberger Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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